DonatShell
Server IP : 180.180.241.3  /  Your IP : 216.73.216.252
Web Server : Microsoft-IIS/7.5
System : Windows NT NETWORK-NHRC 6.1 build 7601 (Windows Server 2008 R2 Standard Edition Service Pack 1) i586
User : IUSR ( 0)
PHP Version : 5.3.28
Disable Function : NONE
MySQL : ON  |  cURL : ON  |  WGET : OFF  |  Perl : OFF  |  Python : OFF  |  Sudo : OFF  |  Pkexec : OFF
Directory :  C:/Program Files (x86)/MySQL/MySQL Workbench 6.1 CE/python/site-packages/Crypto/Cipher/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ HOME SHELL ]     

Current File : C:/Program Files (x86)/MySQL/MySQL Workbench 6.1 CE/python/site-packages/Crypto/Cipher/ARC4.pyc
ó
 ¤'Sc@sQdZdZddlmZdd
d„ƒYZd„ZdZeddƒZd	S(s‚ARC4 symmetric cipher

ARC4_ (Alleged RC4) is an implementation of RC4 (Rivest's Cipher version 4),
a symmetric stream cipher designed by Ron Rivest in 1987.

The cipher started as a proprietary design, that was reverse engineered and
anonymously posted on Usenet in 1994. The company that owns RC4 (RSA Data
Inc.) never confirmed the correctness of the leaked algorithm.

Unlike RC2, the company has never published the full specification of RC4,
of whom it still holds the trademark.

ARC4 keys can vary in length from 40 to 2048 bits.

One problem of ARC4 is that it does not take a nonce or an IV. If it is required
to encrypt multiple messages with the same long-term key, a distinct
independent nonce must be created for each message, and a short-term key must
be derived from the combination of the long-term key and the nonce.
Due to the weak key scheduling algorithm of RC2, the combination must be carried
out with a complex function (e.g. a cryptographic hash) and not by simply
concatenating key and nonce.

New designs should not use ARC4. A good alternative is AES
(`Crypto.Cipher.AES`) in any of the modes that turn it into a stream cipher (OFB, CFB, or CTR).

As an example, encryption can be done as follows:

    >>> from Crypto.Cipher import ARC4
    >>> from Crypto.Hash import SHA
    >>> from Crypto import Random
    >>>
    >>> key = b'Very long and confidential key'
    >>> nonce = Random.new().read(16)
    >>> tempkey = SHA.new(key+nonce).digest()
    >>> cipher = ARC4.new(tempkey)
    >>> msg = nonce + cipher.encrypt(b'Open the pod bay doors, HAL')

.. _ARC4: http://en.wikipedia.org/wiki/RC4

:undocumented: __revision__, __package__
s$Id$iÿÿÿÿ(t_ARC4t
ARC4CiphercBs)eZdZd„Zd„Zd„ZRS(sARC4 cipher objectcOs:tj|||Ž|_|jj|_|jj|_dS(sWInitialize an ARC4 cipher object
        
        See also `new()` at the module level.N(Rtnewt_ciphert
block_sizetkey_size(tselftkeytargstkwargs((s^C:\Program Files (x86)\MySQL\MySQL Workbench 6.1 CE/python/site-packages\Crypto\Cipher\ARC4.pyt__init__HscCs|jj|ƒS(sñEncrypt a piece of data.

        :Parameters:
          plaintext : byte string
            The piece of data to encrypt. It can be of any size.
        :Return: the encrypted data (byte string, as long as the
          plaintext).
        (Rtencrypt(Rt	plaintext((s^C:\Program Files (x86)\MySQL\MySQL Workbench 6.1 CE/python/site-packages\Crypto\Cipher\ARC4.pyRQs	cCs|jj|ƒS(sóDecrypt a piece of data.

        :Parameters:
          ciphertext : byte string
            The piece of data to decrypt. It can be of any size.
        :Return: the decrypted data (byte string, as long as the
          ciphertext).
        (Rtdecrypt(Rt
ciphertext((s^C:\Program Files (x86)\MySQL\MySQL Workbench 6.1 CE/python/site-packages\Crypto\Cipher\ARC4.pyR
\s	(t__name__t
__module__t__doc__R
RR
(((s^C:\Program Files (x86)\MySQL\MySQL Workbench 6.1 CE/python/site-packages\Crypto\Cipher\ARC4.pyRDs			cOst|||ŽS(s,Create a new ARC4 cipher

    :Parameters:
      key : byte string
        The secret key to use in the symmetric cipher.
        It can have any length, with a minimum of 40 bytes.
        Its cryptograpic strength is always capped to 2048 bits (256 bytes).

    :Return: an `ARC4Cipher` object
    (R(RRR	((s^C:\Program Files (x86)\MySQL\MySQL Workbench 6.1 CE/python/site-packages\Crypto\Cipher\ARC4.pyRgsiiN(i(	Rt__revision__t
Crypto.CipherRRRRtxrangeR(((s^C:\Program Files (x86)\MySQL\MySQL Workbench 6.1 CE/python/site-packages\Crypto\Cipher\ARC4.pyt<module>>s#	

Anon7 - 2022
AnonSec Team